[libata] Export ata_pio_queue_task() so that it can be used from sata_mv.
Signed-off-by: Mark Lord <mlord@pobox.com>Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
authored by Mark Lord and committed by Jeff Garzik 17 years ago 1a660164 d16ab3f6